Apparatus for mining coal or other minerals from the solid with deeply penetrating bits



July 9, 1957 ER 2,798,711

H. F. SlLV APPARATUS FOR MINING COAL OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS July 9, -1957 H. F. SILVER APPARATUS FOR MINING COAL. OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS 2l Sheets-Sheet 2 l Filled Feb. 27. 194e July 9, 1957 H. F. SILVER 2,798,711

APPARATUS F'OR MINING COAL. OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS Filed Feb. 27. 1948 21 Sheets-Sheet 3 "Invii/L72)- July 9, 1957 H F SILVER 2,798,711

APPARATUS FOR MININ C'OAZ.. OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS Filed Feb. 27, 1948 2l Sheets-Sheet 4 `N En Q S In venan HamZdJZz/r:

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July O, 1957 H F SILVER 2,798,711

APPARATUS FOR MININ C'OAL OR OTHER MINERALS FROM THI: SOLID WITH OEEPLY PENETRATING BITS Y Filed Feb. 27, 1948 2l Sheets-Sheet 5 x05 4o 7/ l` 93s 90 93 g4 a@ 79 92 y w; 4MM.,

Juy 9, 1957 H F SILVER 2,798,711

APPARATUS F'OR MININ C'OAL. OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS Filed Fb. 27. 1948 2l Sheets-Sheet 6 (l fifi;

Y L. APPARATUS FR MINING COAL OR OTHER MINERALS FRM THE SOLID WITH DEEPLY PENETRATING BITS .Mw 4 M. 11:. @UNER-"e APPARATUS FOR MINING COAL OR OTHER MINERALS FROM THE SOLID WITH DEEFLY PENETRTNG BITS Filed Fab. 2'?, 1.943 21 Sheets-Shefat 8 u 1V? :C r n u: :h

v31 Sheets-Sheet 9 .3m NN mmm F. SILVER Ai.. OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS APPARATUS FOR MINING co July 9, 1957 Filed Feb. 27. 1948 July 9, 1957 H. F. SILVER 2,798,711

APPARATUS RoR MINING com, oR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS 21 Sheets-Sheet 10 Filed Feb. 27. 1948 H. F. SILVER July 9, 1957 2,798,711 Y APPARATUS FOR MINING COAL. OR OTHER MINERALS FROM Filed Feb. 27, 1948 THE SOLID WITH DEEPLY PENETRATING BITS 21 Sheets-Sheet 1l www Z ,w z *ma Y f d IW 8m r. .zr/IV a @E mmm H N Q www mmm RN @Sm @om l y MIM.

T.. OC Umm D j mm 7 H. F. SILVER 2,798,711 July 9 195 APPARATUS FoR MINING coAz. 0R OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRTING BI2T1S Sheets sheet l2 Filed Feb, 27.41948 Y y ,4d-fwn,

July 9, 1957 H F slLvERV 239831K APPARATUS FOR MINING O'OAL OR OTHER MINERALS FROM v I THE SOLID WITH DEEPET` RENETRATING BITS Filed Feb. 27. 1948 BLSHeetS-Sheet l5 59.74.@ 241mm. dal@ JUE? 9 i957 H. F. S|LVER 2,798,711

APPARATUS FOR MINING COAL OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS Filed Feb. 27, 194s 21 sheets-snaai 14 by M 4 'www l @i lli? G fr; x. .mf UT-HES* 9"? f-WS k i?. @im/Enr@ MJFM APPARATUS FOR MINING COAL. OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BUS ilf R113., 27 134.@ 2l Sheets-heet l5 im@ @5g m15? Filed Feb. 27.

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APPARATUS FOR MINING CUAL. OR OTHER MINERALS FROM THE .sown wma DEEPLY PENETRATING BITS July 9, 1957 H. F. SILVER 2,798,711

APPARATUS ROR MINING OOAI. OR OTHER MINERALS FROM l THE SOLID WITHy OEERLY PENEIRATING BITS Filed Feb 27, 1948 21 sheets-sheet I? July 9, 1957 f Filed Feb. 27. 1948 H. E. SILVER M APPARATUS RoR MINING com. oR OTHER MINERAL;` NRoM THE SOLID WITH DEEPLY PENETRATING BITS 21 Sheets-Sheet 18 by 222g H. F. SILVER 2,798,711 APPARATUS FOR MINING 'COAL OR OTHER MINERALS FROM July 9,v 1957 THE SOLID `WITH DEEPLY PENETRATING BITS 2l Sheets-Sheet 19 Filed Feb. 27. 1948 Low Nh, JN. lIvN V IWHHH. ,N

H F. SILVER July 9,' 1.957

4APPARATUS FOR MINING Filed Feb. 27,' 194s 2,798,711 COAL OR OTHER MINERALS FROM THE SOLID WITH DEEPLY PENETRATING BITS 241 Sheets-Sheet 2O www, 

